41.2*8.1+11*9.25+537*0.19的简便算发

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41.2*8.1+11*9.25+537*0.19的简便算发41.2*8.1+11*9.25+537*0.19的简便算发41.2*8.1+11*9.25+537*0.19的简便算发41.2×8.1+1

41.2*8.1+11*9.25+537*0.19的简便算发
41.2*8.1+11*9.25+537*0.19的简便算发

41.2*8.1+11*9.25+537*0.19的简便算发
41.2×8.1+11×9.25+537×0.19
=41.2×(10-1.9)+(10+1)×9.25+537×0.19
=412-41.2×1.9+92.5+9.25+53.7×1.9
=412+92.5+9.25+12.5×(2-0.1)
=412+92.5+9.25+25-1.25
=437+100.5
=537.5
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